Patents by Inventor Gerald Guerro

Gerald Guerro has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Paper or board with surface of carboxylated surface size and polyacrylamide
    Patent number: 6494990
    Abstract: A paper or board is coated with a composition comprising from 30-95 parts by weight of a synthetic, carboxylated surface size containing at least about 40 mole percent of hydrophobic groups and at least about 25 mole percent of carboxylated groups such as styrene/acrylic acid copolymer, and from 5-70 parts by weight of a substantially hydrophilic polyacrylamide such as a cationic or anionic polyacrylamide.
    Type: Grant
    Filed: April 29, 1999
    Date of Patent: December 17, 2002
    Assignee: Bayer Corporation
    Inventors: Rajiv Bazaj, Gerald Guerro, David Dauplaise
  • METHODS AND AGENTS FOR IMPROVING PAPER PRINTABILITY AND STRENGTH
    Publication number: 20010051687
    Abstract: Compositions containing hydrophilic polyacrylamide and hydrophobic surface size agents and the use of such compositions in paper and board to improve printability, sizing and strength are provided in the instant invention.
    Type: Application
    Filed: April 29, 1999
    Publication date: December 13, 2001
    Inventors: RAJIV BAZAJ, GERALD GUERRO, DAVID DAUPLAISE
  • Paper or board treating composition of carboxylated surface size, polyacrylamide and crosslinker
    Patent number: 6281291
    Abstract: A composition useful in paper and board making comprises a carboxylated surface size containing at least 40 mole percent of hydrophobic groups and at least about 25 mole percent of carboxylated groups such as styrene-(meth)acrylic aicd copolymers or styrene-maleic acid (anhydride or salt) copolymers, a hydrophilic polyacrylamide and a crosslinking agent such as glyoxylated vinylamide polymers, formaldehyde, melamine-formaldehyde condensates and glyoxyl-extended materials.
    Type: Grant
    Filed: December 30, 1999
    Date of Patent: August 28, 2001
    Assignee: Bayer Corporation
    Inventors: Rajiv Bazaj, Gerald Guerro, David Dauplaise
  • Paper or board treating composition of carboxylated surface size and polyacrylamide
    Patent number: 6034181
    Abstract: A composition used in paper and board making comprises a carboxylated surface size containing at least 40 mole percent of hydrophobic groups such as styrene/(meth)acrylic acid copolymers or styrene/maleic acid (anhydride or salt) copolymers, and a hydophilic polyacrylamide.
    Type: Grant
    Filed: August 6, 1996
    Date of Patent: March 7, 2000
    Assignee: Cytec Technology Corp.
    Inventors: Rajiv Bazaj, Gerald Guerro, David Dauplaise
  • Methods and agents for improving paper printability and strength
    Patent number: 5824190
    Abstract: Compositions containing hydrophilic polyacrylamide and hydrophobic surface size agents and the methods for using such compositions in paper and board to improve printability, sizing and strength are provided in the instant invention.
    Type: Grant
    Filed: August 6, 1996
    Date of Patent: October 20, 1998
    Assignee: Cytec Technology Corp.
    Inventors: Gerald Guerro, David Dauplaise, Rajiv Bazaj
  • Compositions comprising polyamine and melaminealdehyde
    Patent number: 5807496
    Abstract: Compositions comprising polyamine and melamine polymers in certain ratios are provided for coagulating suspended solids in wastewaters such as deinking process waters and raw waters.
    Type: Grant
    Filed: September 19, 1996
    Date of Patent: September 15, 1998
    Assignee: Cytec Technology Corp.
    Inventor: Gerald Guerro
  • Methods of coagulating and decolorizing waste streams
    Patent number: 5707532
    Abstract: Compositions comprising polyamine and melamine polymers in certain ratios are provided for coagulating suspended solids in wastewaters such as deinking process waters and raw waters.
    Type: Grant
    Filed: September 17, 1996
    Date of Patent: January 13, 1998
    Assignee: Cytec Technology Corp.
    Inventors: Gerald Guerro, Wendy L. DiNicola, Nicole Richards